//c08: InterfaceCollision.java
interface I1{void f();}
interface I2{int f(int i);}
interface I3{int f();}
class C{pubic int f(){return 1;}}

class C2 implements I1,I2
{
	public void f(){}
	public int f(int i){return 1;}
}
class C3 extends C implements I2
{
	public int f(int i){return 2;}
}
class C4 extends C implements I3
{
	public int f(){return 4;}
}